Cover for polishing wheels



July 9, 1935.

A. CONIGLIO COVER FOR POLISHING WHEELS Filed Feb. 13, 1935 52211072@nq'y/z'o.

Patented July 9, 1935 g UNITED STATES PATENT OFFICE COVER FOR PomsnmoWHEELS Anthony Conigllo, Chicago, Ill.

Application February 13, 1935, Serial No. 6,284 12 Claims. (Cl. 15-230)This invention relates to improvements in covver for a po i in Wheel WasP d along ers for polishing wheels and a method of attacheach side ed ethereof t a hem threllgh Whieh ing the same, although the invention mayhave a string was threaded. In attaching sucha cover other and varioususes and purposes as will be or 010th, it was necessary to tie the freeends Of apparent to one skilled in the art. both strings, one on eachside of the wheel, to 5 In the past, certain cloths for polishingwheels, held the cove! in pesitiehwhich are customarily made of a lightcanvas or All other P ev ly develop covers of W ic drill cloth, havebeen developed. However, all I m aware w re v y im l r in constructionto of these formerly known covers of which I am those above m nt d. andw p n t th aware have been objectionably difficult to attach am i ns ofi i v in p n of 10 to a polishing wheel. This difllculty ofattachmanufacture, a d wastage due to injury to the ment was causedmainly by the construction of cover Wh pp y t e Same. the cover. Thecommonly known cover of this With the foregoing in mind, t s a Object otype is one comprising a strip of drill cloth with this inv nti n toprovid a v r for po is pleats or folds formed along each side margin. whl nd th like, whi h v r i xceedin ly 15 The pleats or folds aremaintained in the cloth simpl t attach to a w l and v ry econ mical by aline of stitching which also serves to hold a to make. string or cordsecured to the cloth. This string It is another Object of this}invention 170 Provide runs up one side edge of the cloth, forms a loosea polishing Wheel ve constructed in Such a loop free from the cloth overone end thereof, and m nner that it i n t n s ary t ti the free 20 thenis secured to the cloth down the other side ends of the cord or drawstring by Which the eevel edge thereof, thus leaving two free stringends at i i h ned around the wheel to hol h v r one end of the cloth. Inattaching such a cloth positionto a wheel, the loose loop was insertedin a groove It iS also an Object o t s invention to Provide .or'indentation in the surface of the polishing a polish whe l cover soconstructed as to pro- 25 wheel and with the other end of the cloth heldvide a tight fit v r t w n u a of the in the hand, the wheel was rotateduntil the wheel immediately up p at Without the cloth was woundtherearound, whereupon the necessity o a d Smoothing the Cover duringloose ends of the string must be pulled to tighten attachment.

the cloth around the wheels, and then these loose T e nvent on includesthese and other features 30 ends were tied around the shaft of the wheelon Of construction and hav ng t e above Objects and opposite sides ofthe wheel. However, the cenaims, others of which will become moreapparent tral portion of the cloth was much longer than from thedisclosures hereinafter.

the side edges of the cloth due to the pleats and On the drawing:

folds adjacent the side edges, and consequently Figure 1 is a plan viewof a device embodying 35 much difficult and tedious smoothing of thecloth principles of the present invention. was necessary to have a tightfit over the working Figure 2 is a greatly enlarged fragmentary viewsurface of the wheel. Further, in view of the fact of a portion of thestructure shown in Figure 1. that the string was held directly to thecloth by Figure 3 is a fragmentary vertical sectional a line ofstitching, portions of the string 'freview taken substantially asindicated by the line 40 quently became loosened from the cloth duringIIIIII of Figure 2. the tightening and thereupon the cloth must beFigure 4 is a sectional view of the character cast aside or used with aportion thereof loosely of Figure .3 illustrating a slightly differentform flapping with the revolutions of the wheel. The of construction.

difliculty of attachment, the necessary and tedious Figure 5 is avertical sectional view illustrating 45 smoothing of the cloth and thetieing of the free the first step in applying a cover of the presentends of the string required an undesirable and invention upon apolishing wheel. expensiveamount of time. This, taken together Figure 6is a view of the character of Figure 5 with the frequent injury to thecloth resulting illustrating a more advanced step in the attachfrom aloosening of the string, rendered the use ment of the cover to thewheel. 50 of the cloth objectionably expensive. Economy Figure '7 is aview of the character of Figures is highly essential, especially whenthese cloths 5 and 6 illustrating a further step in the attachare usedon polishing wheels in the shoe repair ment of the cover to the wheel.industry. Figure 8 is a fragmentary front elevatlonal In anotherinstance, a previously developed view of a polishing wheel equipped witha cover embodying principles of the present invention, showing the sameready for use.

As shown on the drawing:

In the illustrated embodiment of the present invention, there is seen apolishing wheel cover generally indicated by reference numeral II. Thiscover comprises a substantially rectangular body I i made of anysuitable material, drill cloth being highly duirable, although flannel,light canvas, felt and similar fabrics may also be used. The body i i ispreferably smooth without any pleats, ruiiles, folds or similar bodyformations. This body ii is preferably provided along each side edgethereof with stitching l2, leaving the end edges l3 and Il respectively,free, as best seen in Figures 1 and 2.

The stitching II, as seen more clearly in Figure 2, is preferably of theoveredge type, providing substantially a tubular guideway along the edgeof the fabric. The stitching is formed around a continuous draw string II of any desirable material, such, for example, as light twine, and thedraw string is free both from the stitching and from the body ll. Acrossthe end ll of thebody ll, thestitchingischained ofl', asindicated at I,to form a loose are over this end of the fabric, and then the stitchingcontinues in overedge style along the opposite side of the fabric, thestitching being preferably continuous,

up one side of the fabric, through the chained ofl' portion l6, and downthe other side of the fabric. The draw string i5 is loose within thestitching throughout the entire length thereof and as seen best inFigure l, the free ends of the draw string project beyond the fabricwhere they may be easily grasped by the hands of a user.

In Figure 4, I have shown a slightly different form of construction,wherein a small hem I! is made in the fabric along the edge thereof.This hem does not change the character of the stitching l2, but resultsin a slight strengthening of the body II. In this figure, the drawstring i5 is disposed beneath the opposite side edges of the fabricrather than beyond these edga, and is contained loosely within thestitching, free from both the stitching and the fabric. The operation ofthe structure shown in Figure 4 is the same as that disclosed in Figures1, 2 and 3.

The present invention lends itself to a new and novel method ofattaching a cover to a polishing wheel. The method of attaching thecover to a wheel is seen best in Figures 5 to 8, inclusive. In thesefigures, there is shown a shaft ll upon which is mounted a polishingwheel I! of any desired construction or character. In most of thesepolishing wheels, grooves or indentations 20 are formed in the workingsurface of the wheel to add to the polishing effect of the wheel. In theevent such grooves do not appear in the surface of the wheel, a suitablegroove or indentation may be provided in an obvious manner, or theinvention may be applied upon a smooth-surfaced wheel.

In applying the cover I. to the wheel it, the cover is first centeredwith respect to the working surface of the wheel and the chained oilloop I, together with that portion of the draw string l5 containedtherein, is inserted in one of the grooves 20, or merely engaged with aportion of the work surface, the cover being held at full lengthsubstantially tangentially to the wheel, as seen in Figure 5. The wheelis next turned away from the operator to wind the cover around theworking surface of the wheel, as indicated in Figure 6. Next, the twofree ends of the draw siting II are pulled by the operator, thus millingthe side margins and causing the cover to tightly embrace the wheel, asseen in Figure 7. It is not necessarythatthefreeendsofthedrawstringbetied to anything, the friction of the stringwithin the stitching I! being suflicient to maintain the cover flrmly inposition upon the wheel until the wheel flanges 2i (Figure '8) have beenplaced in position. The flanges ii are of standard construction and ofthe character commonly used with polishing wheels in the shoe repairindustry. As seenbestinl'igure'Lthesefiangesoverliet-he marginal edge ofthe cover and when clamped into position upon each side of the wheel,they hold the cover in position upon the wheel.

It will be noted that during the positioning of the cover upon thewheel, especially during the winding of the cover around the wheel, allof the strain upon the cover is carried by the chained off stitching Itso that there is no tendency to pull the draw string I 5 through thestitching and render the free ends of the string unavailable. It willalso be noted from Figure 8, that upon the tightening of the draw stringthe cover smoothly form fits the working surface of the wheel and doesnot require hand smoothing to provide an even surface for polishing.

The cover may be as easily removed from the wheel. It is a simpleexpedient to release the flanges 2i, grasp the end of the body portionii, and by pulling upon this end the wheel will rotate towards theoperator, the cover being freed upon a sufllcient turning of the wheel.

From the foregoing, it is apparent that I have provided a new and novelcover for polishing wheels and the like which is simple in construction,economical to manufacture, very durable, not prone to injury onapplication, and which may be extremely easily applied to a wheel. It isalso apparent that I have provided a new and novel method of attachingthe cover to a polishing wheel, providing a devided saving in time andlabor over anything known heretofore, together with a preserving of thecover material.

I claim as my invention:

1. As an article of manufacture, a cover for polishing wheels and thelike, comprising a strip of polishing material, a draw string, andstitching along a side edge of said strip of such a. character as toloosely embrace said draw string.

2. As an article of manufacture, a cover for a polishing wheel and thelike, comprising a strip of fabric, overedge stitching along both sideedges of said strip, said stitching being chained off free from thefabric across one end of the strip thus forming a tube, and 'a drawstring in the tube formed by said stitching.

3. As an article of manufacture, a cover for a polishing wheel and thelike, comprising a flat strip of flexible polishing material, acontinuous draw string disposed adjacent the edge of the strip andslidable along both long edges of the strip and looped across but freefrom an end of the strip, and overedge stitching holding said drawstring in position along the side edges of said strip.

4. As an article of manufacture, a cover for a polishing wheel and thelike, comprising a flat strip of flexible polishing material, acontinuous draw string disposed adjacent the edge of the strip andslidable along both long edges of the strip and looped across but freefrom an end of the strip, and overedge stitching holding said drawstring in-position along the side edges of said strip. Said stitchingbeing chained oil to form a tube free of the strip for that portion ofthe draw string across the end of the strip.

5. As an article of manufacture, a cover for a polishing wheel and thelike, comprising a flat strip of fabric having a. relatively narrow hemalong the side edges thereof, overedge stitching along said edges, and atightening string loosely held adjacent said fabric by said stitching.

6. In combination, a polishing wheel, and a cover on said wheelcomprising a flat strip of polishing material, a draw string, andstitching along the side edges of said strip loosely embracing said drawstring, said stitching being continued beyond an end of said strip toform a tubular enclosure for a looped portion of the string, saidtubular enclosure being engaged with the work face of said wheel and thecover wrapped around the wheel, said draw string being drawn on eachside of said wheel to hold the cover thereupon.

'7. In combination, a polishing wheel, and a cover thereon, said coverbeing flexible and wider than the work face of said wheel and woundaround said work face, a draw string loosely carried by stitching onsaid cover and drawn on each side of said wheel to hold said cover inposition, and flanges associated with said wheel and moved into tightengagement with the marginal portions of said cover to maintain thecover on the wheel. 8. A flexible sheet material cover for a polishingwheel having a draw string in the shape of a U and having its legsslidably retained on side edges of the cover, and a tubular bight at anend of the cover connected to corners of the cover and enclosing thelooped portion of the string.

9. A cover for a polishing wheel, consisting of a piece of polishingmaterial having means along two opposite edges to slidably hold a drawstring. a draw string extending through the holding means along oneedge, extending out into a bight spaced from the piece, and extendingback through the holding means along the other edge, and a bight offlexible inextensible material having its ends fastened to the comers ofthe piece adjacent the bight of the draw string and slidably held alongits length to the bight of the draw string.

10. A cover for a polishing wheel, consisting of a piece of polishingmaterial, a continuous tubular stitching fastened along one edge of thepiece, extending out into a bight spaced from the piece, and fastenedback along the edge parallel to the first edge, and a draw stringextending through the tubular stitching along one edge of the piece,around the bight, and back along the other edge.

11. A flexible sheet material cover for a polishing wheel having a drawstring in the shape of a U including legs and a loop portion, each ofsaid legs being slidably retained on a. side edge of the cover by astitched means, and the loop portion of said U-shaped string extendingbeyond an end of the cover.

12. A flexible sheet material cover for a polishing wheel having a drawstring arranged in the shape of a U including legs and a. loop portion,each of said legs being slidably connected to a side edge of the cover,and the loop portion of said U-shaped string extending beyond an end ofthe cover for connection to the polishing wheel preliminary to theapplication of the cover to the wheel.

ANTHONY CONIGLIO.

